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Table 1 Tuned optimal feedback gain matrix

From: Comparative performance analysis of hybrid differential evolution and pattern search technique for frequency control of the electric power system

Parameters AC link Parallel
AC-DC link
k1 1.7425 1.5306
k2 0.8997 0.7112
k3 − 1.3349 1.4300
k4 0.6772 1.8931
k5 1.3603 1.2474
k6 0.1406 − 0.0329
k7 0.0243 − 0.2212
k8 − 0.9005 − 0.9479
k9 0.5440 0.2004
k10 1.5463 0.2844
k11 1.1735 1.5962
k12 − 0.1054 − 1.2368
k13 − 0.5692 − 0.0252
k14 − 1.5034 − 1.0056
k15 0.3134 0.3920
k16 − 1.0508 − 0.5066
k17 1.6948 1.5894
k18 − 1.0446 0.5825
k19 0.4983 0.7403
k20 0.2930 − 0.0536
k21 0.6421 − 0.3179
k22 0.8966 1.7010
k23 1.4084 1.3353
k24 1.4433 1.6641
k25 − 1.3349 1.6123
k26 0.5298 − 0.5948
k27 1.3752 1.3408
k28 1.7641 − 0.8479
k29 − 1.6571 0.4305
k30 − 0.2549 1.2438
k31 − 0.0814 1.5311
k32 − 0.1054 − 0.2312
k33 1.7671 − 1.6034
k34 − 1.9620 1.8589
k35 − 0.9183 − 0.1582
k36 0.2028 0.8394
k37 − 0.8069 0.7098
k38 − 1.1730 1.5235
k39 − 0.6833 0.2110
k40 − 0.6495 1.8823
k41 1.8709 0.1306
k42 − 1.7750 0.4185
k43 0.6299 0.8831
k44 − 0.3081 − 0.0963
k45 − 1.3550 − 0.5471
k46 0.8986 − 1.1000
k47 0.9808 1.9733
k48 − 1.0999 1.9809
k49 0.3550 − 0.8130
k50 1.8766 − 1.9384
k51 0.5359
k52 − 0.6681